Heat exchanger and air conditioner indoor unit

Abstract

The application provides a heat exchanger and an air conditioner indoor unit. The heat exchanger comprises fins and nozzle fins. At least one nozzle fin is arranged in a fin gap. The nozzle fin is a hollow structure and has a transmission space inside. A first water outlet hole is arranged on at least one side wall of the nozzle fin. The first water outlet hole is connected with the transmission space inside the nozzle fin and the outside of the nozzle fin. When water flows in the transmission space inside the nozzle fin, the water in the transmission space can flow to the outside of the nozzle fin through the first water outlet hole. The water flowing to the outside of the nozzle fin flows downward along the outer wall of the nozzle fin or is sprayed on the fins arranged in parallel with the nozzle fin, so that the water in the transmission space is sprayed more uniformly after flowing out of the transmission space. Under the action of the heat exchanger, the water flowing out of the transmission space is volatilized by the large area of the heat exchanger, and is blown to the outside of the air conditioner under the action of the fan of the air conditioner, so as to humidify the environment outside the air conditioner. The dry environment becomes humid, and the user experience and comfort are improved.

Description

Heat exchangers and indoor air conditioning units Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a heat exchanger and an indoor air conditioning unit. Background Technology

[0002] With the development of the times and the advancement of technology, the development trend of air conditioning is gradually moving towards diversification and higher efficiency. In traditional air conditioning, when air passes through the heat exchanger in cooling mode, some water vapor condenses into water, flowing down the heat exchanger and drip tray, and then draining away through the drain pipe. This can cause the moisture content in the air to continuously decrease, making the indoor environment drier and reducing comfort. As the seasons change, the moisture content in the air constantly fluctuates. Especially in autumn and winter, the lower moisture content in the air can also lead to a poorer experience and lower comfort for people's skin and senses. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioning humidification structure and air conditioner that overcomes or at least partially solves the above problems, and can solve the problem of poor comfort in existing air conditioners. By uniformly distributing water, the humidification uniformity and continuity are improved, and the humidification effect is increased, thereby improving the user experience and comfort.

[0004] Specifically, the present invention provides a heat exchanger. The heat exchanger includes a plurality of fins, which are arranged in parallel and spaced apart to form at least one fin gap;

[0005] At least one nozzle blade is disposed within the fin gap;

[0006] The nozzle plate has a transmission space inside, and at least one side wall of the nozzle plate has a plurality of first water outlet holes communicating with the transmission space, so that water in the transmission space flows out from the water outlet holes to the outside of the nozzle plate.

[0007] Optionally, the distribution density of the water outlet holes on the nozzle plate gradually increases from bottom to top.

[0008] Optionally, the transmission space gradually narrows from bottom to top; the nozzle blades also gradually narrow from bottom to top.

[0009] Optionally, the top of the nozzle plate is sealed; or, the top of the nozzle plate is provided with a second water outlet.

[0010] Optionally, the nozzle blades and the fins are arranged alternately in sequence, and adjacent nozzle blades and fins are arranged at intervals;

[0011] The lower end of the nozzle plate is connected to the water supply pipe so that the water supply pipe can transmit water to the nozzle plate;

[0012] The water supply pipe is set horizontally.

[0013] Optionally, the cross-sectional area of ​​the water supply pipe gradually decreases along the direction of water flow within the pipe.

[0014] Optionally, the height of the nozzle tip is not higher than the height of the fin tip; or

[0015] The height of the nozzle tip is not higher than the height of the fin tip.

[0016] Furthermore, the present invention also provides an indoor air conditioning unit. The indoor air conditioning unit includes any of the heat exchangers described above.

[0017] Optionally, the indoor unit of the air conditioner further includes:

[0018] A water storage device is provided at the lower part of the heat exchanger;

[0019] A water pump is installed on the connecting route between the water storage device and the water delivery pipe, so that the water in the water storage device is pumped to the water delivery pipe.

[0020] The heat exchanger of this invention includes fins and nozzles. At least one nozzle is spaced between the fins. The nozzle is hollow and has an internal transmission space. A first water outlet is formed on at least one sidewall of the nozzle, connecting the transmission space inside the nozzle and the outside of the nozzle. When water flows within the transmission space of the nozzle, the water can flow through the first water outlet to the outside of the nozzle. The water flowing to the outside of the nozzle flows downwards along the outer wall of the nozzle or is sprayed onto the fins parallel to the nozzle, thus ensuring more uniform water distribution after exiting the transmission space. Under the action of the heat exchanger, the water exiting the transmission space evaporates over the large area of ​​the heat exchanger and is blown outwards by the air conditioner's fan, humidifying the external environment. The dry environment becomes humid, improving the user's experience and comfort.

[0021] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0022] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;

[0024] Figure 2 is a partial structural diagram of an air conditioner according to an embodiment of the present invention;

[0025] Figure 3 is a partial structural schematic diagram of a nozzle plate according to an embodiment of the present invention;

[0026] Figure 4 is a partial structural schematic diagram of the nozzle plate according to another embodiment of the present invention;

[0027] Figure 5 is a schematic diagram illustrating the working principle of a nozzle plate according to an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the working principle of the nozzle plate according to another embodiment of the present invention. Detailed Implementation

[0029] The heat exchanger and air conditioning indoor unit of the present invention will be described below with reference to Figures 1 to 6. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0030] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Figure 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention. As shown in Figure 1, and referring to Figures 2 to 6,

[0034] This invention provides a heat exchanger 100. The heat exchanger 100 includes a plurality of fins 120, which are arranged in parallel and spaced apart to form at least one fin gap. One or more nozzle plates 110 are disposed within the at least one fin gap. Each nozzle plate 110 has a transmission space, and at least one sidewall of the nozzle plate 110 has a plurality of first water outlet holes 111 communicating with the transmission space, allowing water in the transmission space to flow out of the water outlet holes to the outside of the nozzle plate 110.

[0035] In this embodiment, the heat exchanger 100 operates as follows: at least one nozzle 110 is provided between the fins 120. The nozzle 110 has a hollow structure and an internal transmission space. At least one side wall of the nozzle 110 has a first water outlet 111, which connects the transmission space inside the nozzle 110 to the outside of the nozzle 110. When water flows in the transmission space inside the nozzle 110, the water in the transmission space can flow to the outside of the nozzle 110 through the first water outlet 111. The water flowing to the outside of the nozzle 110 flows downward along the outer wall of the nozzle 110 or is sprayed onto the fins 120 arranged parallel to the nozzle 110, thereby making the water in the transmission space more evenly sprayed after flowing out of the transmission space. Under the action of heat exchanger 100, the water flowing out of the transmission space evaporates over the large area of ​​heat exchanger 100. Driven by the air conditioner's fan, the airflow passes through the gaps between fins 120 and nozzle 110, and / or between fins 120 and nozzle 110, and / or between nozzles 110, before being blown outside the air conditioner, humidifying the external environment. The dry environment becomes humid, improving the user's experience and comfort.

[0036] In some embodiments of the present invention, the distribution density of the first water outlet hole 111 on the nozzle plate 110 gradually increases from bottom to top.

[0037] In this embodiment, the multiple first water outlet holes 111 on the side wall of the spray nozzle 110 are arranged with denser holes at the top and sparser holes at the bottom to prevent excessive water from being sprayed out from the lower part of the spray nozzle in the internal transmission space of the spray nozzle, thus avoiding water loss during humidification.

[0038] In some embodiments of the present invention, the transmission space tapers from bottom to top. The nozzle blade 110 tapers from bottom to top.

[0039] In this embodiment, the nozzle plate 110 tapers from bottom to top, increasing the water pressure at the upper end of the nozzle plate 110. This facilitates the humidification water at the upper end of the nozzle plate 110 to flow out through the first water outlet 111 and spray onto the fins 120, making full use of the large area of ​​the heat exchanger 100 and improving the water uniformity effect.

[0040] In some embodiments of the present invention, the top end of the nozzle plate 110 is sealed. In this embodiment, sealing the top end of the nozzle plate 110 reduces the outflow channel of humidifying water inside the nozzle plate 110 and increases the water pressure inside the nozzle plate 110. This is beneficial for improving the water uniformity effect.

[0041] In some embodiments of the present invention, a second water outlet hole 112 is provided at the top of the nozzle plate 110.

[0042] In this embodiment, a second water outlet 112 is provided at the top of the nozzle 110. Water is transmitted from the lower end to the top of the nozzle 110, and the water at the top is sprayed out from the second water outlet 112. When the water flows out of the second water outlet 112, depending on the pressure, it may flow directly down the outer wall of the nozzle, or it may be sprayed onto the adjacent fins 120 due to the horizontal velocity when leaving the top of the nozzle. The second water outlet 112 can be of various shapes, such as square, circular, elliptical, irregular, etc.

[0043] In this embodiment, a second water outlet 112 is provided at the top of the nozzle 110. Water flowing out from the second water outlet 112 can flow from the top of the heat exchanger 100 to the bottom of the heat exchanger 100, which increases the flow area of ​​the humidifying water and helps to improve the water uniformity and humidification effect.

[0044] In some embodiments of the present invention, the second water outlet 112 is elongated and extends along the length direction of the top end of the nozzle plate 110, and there is one second water outlet 112.

[0045] In this embodiment, only one second water outlet 112 is provided. The length direction of the second water outlet 112 is consistent with the length direction of the nozzle plate 110, which facilitates water outlet from the second water outlet 112 and water flowing downward along the outer wall.

[0046] Of course, in some embodiments of the present invention, the second water outlet 112 may also be elongated, with the second water outlet extending along the length of the top end of the nozzle 110, and two second water outlets 112 arranged side by side.

[0047] In some embodiments of the present invention, the second water outlet 112 is arranged in a row, with multiple second water outlets 112 in each row, and the multiple second water outlets 112 are arranged along the length direction of the top end of the nozzle plate 110. In this embodiment, providing multiple second water outlets 112 results in more uniform water distribution compared to a single elongated second water outlet 112.

[0048] Of course, in some embodiments of the present invention, the second water outlet holes 112 are arranged in two parallel rows. There are multiple second water outlet holes 112 in each row, and the multiple second water outlet holes 112 are arranged along the length direction of the top end of the nozzle plate 110.

[0049] In some embodiments of the present invention, the second water outlet 112 is arranged in two rows, with one row of second water outlets 112 alternating with the other row of second water outlets 112.

[0050] In some embodiments of the present invention, nozzle plates 110 and fins 120 are arranged alternately, with adjacent nozzle plates 110 and fins 120 spaced apart. In this embodiment, nozzle plates 110 and fins 120 are arranged alternately. That is, each nozzle plate 110 is adjacent to fins 120 on both sides, and each fin 120 is adjacent to nozzle plates 110 on both sides, with gaps between adjacent nozzle plates 110 and fins 120. This arrangement makes the water flowing out of the internal transmission space of the nozzle plate 110 more evenly distributed on the heat exchanger 100, improving the water uniformity effect.

[0051] In some embodiments of the present invention, the heat exchanger 100 further includes a water supply pipe 200. The lower end of the nozzle 110 is connected to the water supply pipe 200. In this embodiment, the lower end of the nozzle 110 is connected to the water supply pipe 200, and water can flow through the water supply pipe 200 to be transported to the nozzle 110.

[0052] In some embodiments of the present invention, the water supply pipe 200 is inclined downwards along the water flow direction. In this embodiment, the downward inclination facilitates the flow of water in the water supply pipe 200 to the downstream end. Of course, in some embodiments of the present invention, the water supply pipe 200 may also be inclined upwards along the water flow direction.

[0053] In some embodiments of the present invention, the water supply pipe 200 is horizontally arranged. In this embodiment, the horizontal arrangement of the water supply pipe 200 is relatively inclined, which makes better use of space and avoids the phenomenon of water shortage at the higher end.

[0054] In some embodiments of the present invention, the cross-sectional area of ​​the water supply pipe 200 gradually decreases along the direction of water flow within the water supply pipe 200. In this embodiment, because the water flowing inside the water supply pipe 200 during the water supply process will be injected into the nozzle plate 110, the gradual decrease in the cross-sectional area of ​​the water supply pipe 200 along the direction of water flow within the water supply pipe 200 can avoid insufficient water supply power to the nozzle plate 110 at the downstream end of the water supply pipe 200.

[0055] In some embodiments of the present invention, the height of the top end of the nozzle blade 110 is lower than the height of the top end of the fin 120. In this embodiment, the lower height of the top end of the nozzle blade 110 compared to the top end of the fin 120 effectively saves space.

[0056] In some embodiments of the present invention, the height of the top end of the nozzle 110 is higher than the height of the top end of the fin 120. In this embodiment, the higher height of the top end of the nozzle 110 compared to the top end of the fin 120 can improve the spraying effect of the second water outlet 112 and help to improve the water uniformity effect.

[0057] Furthermore, the present invention also provides an air conditioner indoor unit. The air conditioner indoor unit includes the heat exchanger 100 in any of the above embodiments.

[0058] In some embodiments of the present invention, the indoor unit of the air conditioner includes a water storage device 400. In this embodiment, the water storage device 400 is used to supply water to the transmission space of the nozzle 110 to ensure the continuity of water supply.

[0059] In some embodiments of the present invention, the indoor unit of the air conditioner further includes a water pump 300. The water pump 300 is used to drive water from the water storage device 400 into the transmission space of the nozzle plate 110. In this embodiment, the water pump 300 provides continuous power for the transmission of water.

[0060] In some embodiments of the present invention, the water storage device 400 is a water receiving tray, which is disposed below the heat exchanger 100.

[0061] In this embodiment, a drip tray is positioned below the heat exchanger 100 to collect any unevaporated water from the heat exchanger 100. This prevents water flowing from the heat exchanger 100 from entering the room and damaging electrical components, thus improving the safety performance of the indoor air conditioning unit.

[0062] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A heat exchanger, characterized in that, The heat exchanger is used in an indoor unit of an air conditioner. The heat exchanger includes multiple fins arranged in parallel and spaced apart to form at least one fin gap. One or more nozzles are disposed within at least one fin gap. Each nozzle has a transmission space, and at least one sidewall of the nozzle has multiple first water outlets communicating with the transmission space, so that water in the transmission space flows out from the water outlets to the outside of the nozzle, and the water flowing to the outside of the nozzle flows downward along the outer wall of the nozzle. The nozzles and fins are arranged alternately in sequence, and adjacent nozzles and fins are spaced apart. The lower end of the nozzle is connected to a water supply pipe so that the water supply pipe supplies water to the nozzle.

2. The heat exchanger according to claim 1, characterized in that, The distribution density of the water outlet holes on the nozzle plate gradually increases from bottom to top.

3. The heat exchanger according to claim 1, characterized in that, The transmission space gradually narrows from bottom to top; the nozzle blades also gradually narrow from bottom to top.

4. The heat exchanger according to claim 1, characterized in that, The diameter of the water outlet gradually decreases along the water flow direction on the nozzle plate.

5. The heat exchanger according to claim 1, characterized in that, The top of the nozzle plate is sealed; or, the top of the nozzle plate is provided with a second water outlet.

6. The heat exchanger according to claim 1, characterized in that, The water supply pipe is set horizontally.

7. The heat exchanger according to claim 6, characterized in that, The cross-sectional area of ​​the water supply pipe gradually decreases along the direction of water flow within the pipe.

8. The heat exchanger according to claim 1, characterized in that, The height of the nozzle tip is higher than the height of the fin tip; or the height of the nozzle tip is not higher than the height of the fin tip.

9. An indoor unit for an air conditioner, characterized in that... Includes the heat exchanger as described in any one of claims 1-8.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, Also includes: A water storage device is provided at the lower part of the heat exchanger; A water pump is installed on the connecting route between the water storage device and the water delivery pipe, so that the water in the water storage device is pumped to the water delivery pipe.

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